Playlist songs won't sync on Nexus 7

[Tsarli]

Was wondering why some songs on my Music playlist won't sync on my Nexus 7



Songs from the exact same playlist appear and play  just fine on my Sony Live with Walkman.



Any suggestions folks?

[loociddreemr]

Its either file format or DRM.

[bjs229]

Sounds like a Sony proprietary issue.

[loociddreemr]

Sony is notorious for that!

[Tsarli]

Funny thing is, the tune files themselves show up on the  Songs list but not on the Playlist. So I know they're there, just not on the Playlist. No problem with Playlists either on my PC or my other Android, just the Nexus 7. 

[bjs229]

What format are they and can you use another app to play them?

[Tiny]

Sony is notorious for that!

That isn't all that Sony is notorious for.  Since the root-kit days, I have refused to spend a nickel on Sony products, no matter how good the deal might be.  I like to think that I'm the reason for their recent financial problems.